When I had the same speakers, the Cardas bi-wire worked well. You can find several with various lengths at this site.
Speaker cable suggestions for Rogue and Spendors?
I have a Rogue Audio Magnum 88 amp, Rogue Audio Magnum 66 preamp and Spendor SP100 speakers. Right now I have Audioquest Indigo+ speaker cables but I am looking to upgrade them. I would appreciate feedback from anyone with similar equipment. If it matters my front end is a Meridian 508.24 cd player and my interconnects are Synergistic Research Alpha Sterling (cd to preamp) and Audioquest Viper (preamp to amp).